The SdKfz 250/11 (2.8cm sPzB41)also known as Demag was a self propelled anti tank vehicle used by the germans between 1942 and 1945.

The vehicle was manned by a crew of 6 and was 1.97 metres wide, 4.77 metres long, 2.13 metres high and weighed 5.53 tonnes.

Powered by a 100hp petrol engine the SdKfz 250/11 (2.8cm sPzB41) was capable of a road speed of 37mph and a cross country speed of 15mph. The SdKfz 250/11 (2.8cm sPzB41) had a road range of 200 miles

Based on the sdkfz 250 halftrack chassis, the vehicle was armed with 1 light machine gun, a 2.8cm sPzB 41 with a muzzle velocity of 1400m/sec which was capable of penetrating 39mm of armour at 800metres